There are many components of a UV system presented below:

Main components of a UV system

There are many UV disinfection systems on the market. Whether for commercial, industrial, or domestic use, they are all made up of the same general components. These four components are:

These elements are the basis of all UV systems, but there are other optional parts such as sensors, solenoid valves…

UV chamber or reactor

In the UV chamber or reactor, there are one or more UV lamps protected by their quartz tubes.

Each reactor has an inlet and an outlet to be connected to the hydraulic system. In addition, a UV reactor is usually made of stainless steel. However, other materials such as HDPE can be used when disinfecting salt or corrosive water.

Different types of reactors can be found for specific applications such as sterilization.

Depending on the model and the flow rate that the system is intended to supply, we supply it with different sized orifices.

  • bulb-uv-lamp-biouv-1H2O3

    UV bulbs

     UV disinfection Price range: € 104,00 through € 1 334,24 HT

UV lamp

UV lamps can produce UV-C rays, rays with wavelengths between 100 and 400 nm.

We can distinguish between low and medium pressure lamps.

  • Low pressure” lamps are monochromatic lamps that emit mainly at one wavelength: 254 nm.
  • Medium pressure” lamps have a higher spectrum. Their selection is done according to the requirements of the application and the disinfection.

UV Lamp Type

  • Standard low-pressure UV lamps: These are often used in applications where flow rates are lower (e.g. in a residential home) and where exposure times may be longer. These lamps are less expensive to replace, and in general, the initial cost of the equipment is also much lower.
  • High power (HO) low pressure lamps. They are recommended when:
    • Space is reduced, as they are more compact than standard lamp reactors
    • UV doses are high
    • High processing rates are required.
  • Low pressure amalgam lamps: they use a mercury amalgam alloy to control the vapor pressure. Thanks to a slightly different process than other lamps, they can produce up to three times the UV-C power of a standard low-pressure lamp of the same length. They are mainly used in more commercial applications or for regulatory requirements, depending on the type of microbiological contamination to be treated.
  • Medium-pressure lamps: they generate a wider spectrum of UVC (from 200 to 400 nm) and have a significantly higher power than low-pressure lamps. Reactors with medium-pressure bulbs are also significantly more compact, which has a clear advantage for large flow rates compared to low-pressure UVC systems. However, compared to low pressure lamps, medium pressure lamps are not particularly good producers of useful germicidal wavelengths. Medium-pressure lamps typically only convert up to 10% of their input power into usable UV-C, while low-pressure amalgam lamps can be up to 40% efficient.

Composition of UV lamps

For the glass that constitutes the structure of the lamp, different types exist on the market:

  • Soft glass, less expensive, but fades over time, which decreases its UVC transmission efficiency.
  • quartz glass, harder and less likely to break

Both types of glass are often treated to help increase their UV-C transmission.

Low pressure lamps generally have a lifespan up to 2 years. Thanks to their high electrical efficiency, the market share of “low pressure-high intensity” amalgam lamps has increased considerably in recent years. Medium pressure lamps are often used in industry because they produce very intense radiation sources.

Important: To be environmentally friendly, lamps must be recycled. The supplier usually takes care of this.

Quartz sleeves to protect the lamp

It is a long cylindrical tube of quartz glass, used to protect the lamp. It is through this tube that UV light is transmitted into the water. To avoid minerals and other contaminants clogging the tube, cleaning is necessary when the lamp is changed. Some reactors have an automatic cleaning system, which is recommended for water with high transmittance.

  • Long Quartz Sleeve Tube UV Quartz Sheath 1H2O3

    UV Quartz Sheaths

     UV disinfection Price range: € 54,00 through € 294,82 HT

Control unit

This element, the electrical cabinet in a way, controls the electrical power of the lamp and powers it to produce UVC light. Some suppliers only have a simple control board that fits on the end of the lamp, when it comes to small reactors. For larger reactors, the control unit may include:

  • lamp change timers
  • Low UV alarm
  • alarm lights to indicate any system malfunction.

Therefore, these units vary in complexity, but also in size.

All UV systems are designed so that all parts work together as a complete functional system. For this reason, it is important to ensure that the right components are used for the system being used when replacing any of the elements. Therefore, always use original equipment for maintenance.

FAQ

What are the essential components of a UV purification system?

A typical UV purification system consists of several key components:

  • UV lamp : generates the UV-C light needed for disinfection.

  • Quartz sleeve : protects the lamp from water while allowing the transmission of UV rays.

  • Reactor chamber : housing where water is exposed to UV light.

  • Ballast or control unit : regulates the power supply to the lamp.

  • UV Sensor (optional): Monitors UV intensity to ensure effective disinfection.

Each component plays a crucial role in the overall efficiency of the purification system.

The use of compatible components ensures the proper functioning and safety of the system. Incompatible parts can lead to ineffective disinfection, property damage, or health risks. It is therefore essential to follow the manufacturer’s recommendations when replacing or adding components.

Regular maintenance is essential to maintain the effectiveness of a UV system:

  • UV lamp replacement : Approximately every 9,000 to 13,000 hours of use, depending on the type of lamp.

  • Cleaning the quartz sleeve : periodically to avoid the accumulation of deposits that can reduce UV transmission.

  • Ballast check : make sure it is working properly and that there are no signs of overheating or malfunction.

  • Inspection of the UV sensor : If present, check that it measures the UV intensity correctly.

Proper maintenance extends the life of the system and ensures optimal disinfection.

There are some signs that a component may need to be replaced:

  • Decreased water quality : presence of taste, odour or contaminants.

  • Alarms or indicator lights : Indicating malfunction or low UV intensity.

  • Physical appearance : Cloudy or damaged quartz sleeve, blackening UV lamp.

  • Exceeded life : Follow the manufacturer’s recommendations for component life.

Early attention to these signs helps maintain the effectiveness of the system.

Yes, it is possible to upgrade an existing UV system by adding or upgrading certain components:

  • Addition of a UV sensor : to monitor the effectiveness of disinfection in real time.

  • Installation of a pre-filter : to remove suspended particles and improve water clarity, thus increasing the effectiveness of UV treatment.

  • Ballast upgrade : To a more advanced model with additional features like alarms or timers.

Before making any changes, it is recommended to consult with the manufacturer or a professional to ensure compatibility and effectiveness of the improvements.

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